Right, and I'm asking you what you think that "something else" is.

Hell, how would I know? Let's say "thinking" for the sake of argument.

I'd also re-assert my challenge to you: if philosophy's arguments don't rest on some evidence of some kind, what distinguishes it from nonsense/fiction?

People think it makes sense.

"Definitions may be given in this way of any field where a body of definite knowledge exists. But philosophy cannot be so defined. Any definition is controversial and already embodies a philosophic attitude. The only way to find out what philosophy is, is to do philosophy." -- Bertrand Russell